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Carbon steel 4.8/8.8/10.9 M4/galvanized/Customized double rod fastener knurled bamboo screw
| Category | Non-standard screws | Head type | Cheese head |
| Slot Type | NO | Mode of action | Hand twist |
| Thread size | M8 | Tolerance | 6G |
| Surface | Galvanized | Material Grade | Carbon Steel 45H |
Screws are generally called wood screws; designed with a sharp tip and larger pitch, ideal for tightening wood and plastic parts. Mechanical screws feature uniform, small pitch threads, generally used to fasten metal and machine parts.









Our products meet international quality systems such as ANSI and BS. We provide professional fasteners for construction steel, automotive, machinery, energy, and railway industries. Professional engineers monitor the entire production process to guarantee high-quality results.



Via Ocean Shipping:
North/South America: ~40 working days | Eastern Europe: ~30-40 working days | Southeast Asia: ~20-30 working days
Via Air Transport:
Global delivery around 7-10 business days. Packaging options include boxes, cartons, or plastic bags based on requirements.
WEX Medical